AS/NZS 1163

AS/NZS 1163 Hollow Section
Discover the pinnacle of structural integrity with our AS/NZS 1163 certified steel hollow sections. Designed for the most demanding structural and engineering applications, these cold-formed, electric resistance-welded steel hollow sections offer unparalleled strength and durability. With three distinct strength grades and optional impact properties, our product range is tailored to meet your specific needs. Weldability comes standard, as these sections are formed cold without any subsequent heat treatment. When you choose our AS/NZS 1163 steel hollow sections, you’re not just buying a product; you’re investing in a solution that brings reliability, longevity, and peace of mind to your projects.
AS/NZS 1163 Specification
When it comes to specifications, our AS/NZS 1163 steel hollow sections leave no room for compromise. The dimensions are meticulously crafted to meet industry standards, ensuring a perfect fit for your structural needs. Our production procedures adhere to rigorous quality controls, guaranteeing a product that stands the test of time. You have the flexibility to choose from various steel grades, surface coatings, end types, and joint methods. Additionally, we offer a range of machining services to customize the product to your exact specifications. With us, you get a product that is not just compliant but also customizable to your unique requirements.
| Production Standard | AS/NZS 1163 | ||
| Manufacturing Processes | ERW(CHS) | ||
| HOLLOW SECTION(RHS,SHS) | |||
| Outside Diameter | 13.5mm -610mm 20*20-400*400mm | ||
| Wall Thickness | 2.3mm – 12.7mm 1.6-16mm | ||
| Pipe Length | Random: 4- 16mtrs fixed length be specified at time of order. | ||
| Steel Grade | C250 C250L0 | C350 C350L0 | C450 C450L0 |
| Corrosion Prevention | NOPC. Lacquer, Varnish, Oiling, Galvanizing | ||
| FBE, 2LPP, 3LPP, 2LPE, 3LPE | |||
| End Processes | Square Cut, Bevelling, Threading, Grooving | ||
| Further Processing | Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding | ||
AS/NZS 1163 Dimension Table

Understanding the dimensions of our AS/NZS 1163 steel hollow sections is crucial for your project’s success. Our comprehensive dimension table provides all the information you need, from external diameters to wall thicknesses. Each measurement is carefully calibrated to ensure optimal performance and fit. With our dimension table at your disposal, you can easily plan and execute your projects, knowing that each section will align perfectly. Trust us to provide you with steel hollow sections that meet your dimensional requirements to the letter.
| Outside Diameter (mm) | Circular Hollow Sections Wall Thickness (mm) | ||||||
|---|---|---|---|---|---|---|---|
| 42.2 | 3.2 | 4.0 | 4.9 | – | – | – | – |
| 48.3 | 3.2 | 4.0 | 5.4 | – | – | – | – |
| 60.3 | 3.6 | 4.5 | 5.4 | – | – | – | – |
| 76.1 | 2.3 | 3.2 | 3.6 | 4.5 | 5.9 | – | – |
| 88.9 | 2.6 | 3.2 | 4.0 | 4.8 | 5.0 | 5.5 | 5.9 |
| 101.6 | 2.6 | 3.2 | 4.0 | 5.0 | – | – | – |
| 114.3 | 3.2 | 3.6 | 4.5 | 5.4 | 4.8 | 6.0 | – |
| 139.7 | 3.0 | 3.5 | 5.0 | 5.4 | – | – | – |
| 165.1 | 3 | 3.5 | 5.0 | 5.4 | – | – | – |
| 168.3 | 4.8 | 6.4 | 7.1 | – | – | – | – |
| 219.1 | 4.8 | 6.4 | 8.2 | – | – | – | – |
| 273.1 | 4.8 | 6.4 | 9.3 | – | – | – | – |
| 323.9 | 6.4 | 9.5 | 12.7 | – | – | – | – |
| 355.6 | 6.4 | 9.5 | 12.7 | – | – | – | – |
| 406.4 | 6.4 | 9.5 | 12.7 | – | – | – | – |
| 457 | 6.4 | 9.5 | 12.7 | – | – | – | – |
| 508 | 6.4 | 9.5 | 12.7 | – | – | – | – |
| 610 | 6.4 | 9.5 | 12.7 | – | – | – | – |
| Size(mm) | Rectangular Hollow Sections Wall Thickness (mm) | ||||||
|---|---|---|---|---|---|---|---|
| 50 x 20 | 1.6 | 2.0 | 2.5 | 3.0 | – | – | – |
| 50 x 25 | 1.6 | 2.0 | 2.5 | 3.0 | – | – | – |
| 65 x 35 | 2.0 | 2.5 | 3.0 | – | – | – | – |
| 75 x 25 | 1.6 | 2.0 | 2.5 | – | – | – | – |
| 75 x 50 | 2.0 | 2.5 | 3.0 | 4.0 | – | – | – |
| 100 x 50 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 5.0 | 6.0 |
| 125 x 75 | 3.0 | 4.0 | 5.0 | – | – | – | – |
| 150 x 50 | 3.0 | 4.0 | 5.0 | – | – | – | – |
| 150 x 100 | 4.0 | 5.0 | 6.0 | – | – | – | – |
| 200 x 100 | 4.0 | 5.0 | 6.0 | 9.0 | – | – | – |
| 250 x 150 | 5.0 | 6.0 | 9.0 | – | – | – | – |
| Size(mm) | Square Hollow Sections Wall Thickness (mm) | |||||
|---|---|---|---|---|---|---|
| 20 x 20 | 1.6 | – | – | – | – | – |
| 25 x 25 | 1.6 | 2.0 | 2.5 | 3.0 | – | – |
| 30 x 30 | 1.6 | 2.0 | – | – | – | – |
| 35 x 35 | 1.6 | 2.0 | 2.5 | 3.0 | – | – |
| 40 x 40 | 1.6 | 2.0 | 2.5 | 4.0 | – | – |
| 50 x 50 | 1.6 | 2.0 | 2.5 | 3.0 | 4.0 | – |
| 65 x 65 | 2.0 | 2.5 | 3.0 | – | – | – |
| 75 x 75 | 2.5 | 3.0 | 3.5 | 4.0 | 5.0 | 6.0 |
| 89 x 89 | 3.5 | 5.0 | 6.0 | – | – | – |
| 100 x 100 | 3.0 | 4.0 | 5.0 | 6.0 | 9.0 | – |
| 125 x 125 | 4.0 | 5.0 | 6.0 | 9.0 | – | – |
| 150 x 150 | 5.0 | 6.0 | 9.0 | – | – | – |
| 200 x 200 | 5.0 | 6.0 | 9.0 | – | – | – |
| 250 x 250 | 6.0 | 9.0 | – | – | – | – |
Chemical Requirements of AS/NZS 1163
When it comes to the chemical composition of our AS/NZS 1163 steel hollow sections, we adhere to stringent guidelines to ensure maximum strength and durability. Each element, from carbon to manganese, is carefully balanced to provide you with a product that resists corrosion, withstands high pressures, and maintains structural integrity under various conditions. By choosing our steel hollow sections, you benefit from a product that meets all chemical requirements, giving you the confidence to proceed with your most ambitious projects.
| Grades (see Note 1) | Chemical Composition (cast or product analysis) (see Note 2) % max. | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Cr | Mo | Al (see Note 3) | Ti | Micro-alloying elements | CE (see Note 4) | |
| C250, C250L0 | 0.12 | 0.05 | 0.50 | 0.03 | 0.03 | 0.15 | 0.10 | 0.10 | 0.04 | 0.03 (see Note 5) | 0.25 |
| C350, C350L0 | 0.20 | 0.25 | 1.60 | 0.03 | 0.03 | 0.30 | 0.10 | 0.10 | 0.04 | 0.15 (see Note 6) | 0.43 |
| C450, C450L0 | 0.20 | 0.25 (see Note 7) | 1.70 | 0.03 | 0.03 | 0.30 | 0.35 | 0.10 | 0.04 | 0.15 (see Note 6) | 0.43 |
NOTES:
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Mechanical Requirements of AS/NZS 1163
Mechanical properties are at the heart of any structural material, and our AS/NZS 1163 steel hollow sections are no exception. From tensile strength to yield strength, each mechanical attribute is optimized to offer you unparalleled structural integrity. Whether your project involves heavy loads or dynamic forces, our steel hollow sections are engineered to withstand the most challenging conditions. With us, you get a product that not only meets but exceeds mechanical requirements, ensuring your projects stand strong for years to come.
| TENSILE TEST REQUIREMENTS | ||||||||
|---|---|---|---|---|---|---|---|---|
| Grade | Minimum Yield StrengthMPa | Minimum Tensile StrengthMPa | Minimum Elongation as a Proportion of The Gauge Length of 5.65√So (see Note) % | |||||
| Circular Hollow Sections do/t | Rectangular Hollow Sections b/t, d/t | |||||||
| ≤15 | >15≤ 30 | >30 | ≤15 | >15 ≤30 | >30 | |||
| C250, C250L0 | 250 | 320 | 18 | 20 | 22 | 14 | 16 | 18 |
| C350, C350L0 | 350 | 430 | 16 | 18 | 20 | 12 | 14 | 16 |
| C450, C450L0 | 450 | 500 | 12 | 14 | 16 | 10 | 12 | 14 |
| NOTE:These limits apply to the face from which the tensile test is taken. That is, for RHS, the use of b/t or d/t ratio is dependent on which face the test specimen is cut from. For SHS, there is only one ratio (as b = d). | ||||||||
| CHARPY V-NOTCH IMPACT TEST REQUIREMENTS | |||||||
|---|---|---|---|---|---|---|---|
| Grade | Test temperature °C | Minimum absorbed energy, J | |||||
| Size of test piece | |||||||
| 10 mm × 10 mm | 10 mm × 7.5 mm | 10 mm × 5 mm | |||||
| Average of 3 tests | Individual test | Average of 3 tests | Individual test | Average of 3 tests | Individual test | ||
| C250L0 C350L0 C450L0 | 0 | 27 | 20 | 22 | 16 | 18 | 13 |
Steel Grades of AS/NZS 1163
Choosing the right steel grade is crucial for the success of your project, and our AS/NZS 1163 steel hollow sections offer a range of options. From C250 to C450, each grade is designed to meet specific structural needs. The “L0” designation indicates that the steel meets the 0 impact test requirement, providing additional assurance of durability. With us, you have the freedom to select the steel grade that best suits your project’s demands, ensuring optimal performance and longevity.
- C250
- C250 L0
- C350
- C350 L0
- C450
- C450 L0
Production Tolerance ofAS/NZS 1163
| TOLERANCES FOR SHAPE AND MASS | |||||
|---|---|---|---|---|---|
| Characteristic | Circular hollow sections | Square and rectangular hollow sections | |||
| External dimensions (do, d and b) | ±1%, with a minimum of ±0.5 mm and a maximum of ±10 mm | ±1%, with minimum of ±0.5 mm | |||
| Thickness (t) | For do £ 406.4 mm: ±10% For do > 406.4 mm: ±10% with a max of ±2 mm | ±10% | |||
| Out-of-roundness (o) | ±2% for hollow sections having a diameter to thickness ratio not exceeding 100 (see Note 1) | – | |||
| Concavity/convexity (see Note 2) | – | Max. 0.8% or 0.5 mm, whichever is greater | |||
| Squareness of sides | – | 90°±1° | |||
| External corner profile | See Table 5 | ||||
| Twist (v) | – | 2 mm + 0.5 mm/m length | |||
| Straightness (see Note 3) | 0.20% of total length | 0.15% of total length | |||
| Mass (m) per unit length | Not less than 0.96 times the specified mass (Note 4) on individual lengths | ||||
| TOLERANCES ON LENGTH (see Note) | ||
|---|---|---|
| Type of length | Range mm | Tolerance |
| Random length | 4000 to 16 000 with a range of 2000 per order item | 10% of sections supplied may be below the minimum for the ordered range but not less than 75% of the minimum |
| Mill (or ‘unspecified’) length | All | +100 mm –0 |
| Precision length | <6000 | +5 mm –0 |
| ³6000 £10 000 | +15 mm –0 | |
| >10 000 | +5 mm + 1 mm/m –0 | |
| NOTE: The enquiry and order shall indicate the type of length required and the length or length range, as appropriate. Alternatively, length tolerances shall be specified at the time of order. | ||



